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Anchor installation system

a technology of installation system and anchor, which is applied in the direction of anchors, vessel construction, construction, etc., can solve the problems of material cost, fabrication and installation cost of anchors

Inactive Publication Date: 2009-05-05
EXXONMOBIL UPSTREAM RES CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The invention is an anchor installation system for offshore structures. The system includes two elongated hollow elements and a pipe end to pipe end connector for releasably connecting the two hollow elements. The system also includes a valve for regulating fluid flow and an attachment device for attaching cables or chains to the hollow elements. The system allows for the safe and efficient installation of anchors for offshore structures, as well as the production of hydrocarbon resources.

Problems solved by technology

However, typically as the size of the anchor increases, so does the anchor's material, fabrication and installation costs.

Method used

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Embodiment Construction

[0016]As used herein and in the appended claims the phrase “elongated hollow element” is meant to refer to any device that forms an enclosure on all its sides except that its top and bottom ends may be open or closed with a cap. For example, by way of illustration and not limitation, a circular, rectangular or elliptical conduit with a closed or open top and lower end. An elongated hollow element may be completely hollow within its interior or may be only partially hollow, for example including internal structural bracing within the elongated hollow element. The elongated hollow elements according to the invention may have an open lower end.

[0017]As used herein and in the claims the phrase “pipe end to pipe end connector” is meant to refer to any device or method of connecting one end of an elongated hollow element to one end of a second elongated hollow element. For example, a gravity connector, a threaded screwed connector, or a mechanical connector that includes moving mechanical...

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Abstract

A system and method for installing a pile anchor (75) using an anchor installation system (100). The anchor installation system comprising an elongated hollow anchor element (75) that is releasably attached to an installation element or installer (50). The installer can be used repeatedly for multiple installations.

Description

CROSS REFERENCE TO RELATED APPLICATIONS[0001]This application is the National Stage of International Application No. PCT / US04 / 04568, filed Feb. 17, 2004, which claims the benefit of U.S. Provisional Application 60 / 451,823, filed Mar. 4, 2003.FIELD OF THE INVENTION[0002]This invention relates generally to pile anchor technology and in particular to a novel anchor installation system that can be used for mooring offshore structures, such as, but not limited to, floating structures, DDCV's, drilling or production risers, pipelines semi-submersibles, drilling vessels, subsea structures and other structures used in the offshore petroleum industry.BACKGROUND OF THE INVENTION[0003]Offshore structures, such as those used by the petroleum industry, are sometimes moored to the seafloor using pile anchors. Existing pile anchors may generally be described as a single tubular element, typically circular in cross section, with a closed top and an open bottom. The ability of a pile anchor to moor ...

Claims

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Application Information

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Patent Type & Authority Patents(United States)
IPC IPC(8): E02D15/08B63B21/27E02D5/22B63B21/29
CPCB63B21/27B63B21/29B63B2021/007B63B21/26E02D5/52
Inventor RAINES, RICHARD D.
Owner EXXONMOBIL UPSTREAM RES CO
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